Article search: how to restore volume from microphone data?

Question

Signal processing

Greetings! A couple of years ago there was an article on GT from one of the editors that the guys from MIT (?) using a set of microphones were able to restore the interior of the cathedral, I just can’t find it. If there is a link to the GT or the original, please share.

Answer 1

At the request "echolocation cathedral", an article on vesti.ru, for example, is googled.